The Variables k, R, T

• These variables keep appearing time and time again, and the texts don't always bother to define them.
  
  
• is Boltzmann's constant. It relates energy to temperature for a theoretical "black body."
  
  
  1. 1.38066 x 10^-23 joules per Kelvin
  2. 1.38066 x 10^-16 ergs per Kelvin
     
     
• is the Real Gas Law constant. It relates pressure-volume to mass-temperature. Pressure-volume has the units of energy.
  
  
  1. 82.056 cubic centimeters-atmospheres per Kelvin-mole
  2. 1.9872 calories per Kelvin-mole
     
     
• is temperature; always use an absolute scale (i.e., zero is the lowest temperature possible.)